NetSpot - NetSpot is a free app for wireless site surveys, Wi-Fi analysis, and troubleshooting
Foxfi - FoxFi is now part of PdaNet+, a top Android software downloaded by millions! PdaNet+ will provide you with multiple connection options - USB, WiFi and Bluetooth.
Vistumbler - Vistumbler is a wireless network scanner for Windows Vista and Windows 7. Features:
MyWi - Wherever you are - you can connect your laptop or other mobile device to your iPhone®/iPad® easily to use your iPhone/iPad's data connection. MyWi™ has been rebuilt from scratch to increase iPhone WiFi tethering speeds on iOS 6-9!
Kismet - Kismet is an 802.11 layer2 wireless network detector, sniffer, and intrusion detection system.
Connectify Hotspot - Connectify Me hotspot is a PC app that turns your computer into a Wi-Fi hotspot.